An automatic collecting device and method for rice mill by-products classification

Abstract

The application discloses a rice processing plant by-product classification automatic collecting device and method in the field of rice by-product collection, which comprises a temporary storage mechanism, the temporary storage mechanism is matched with an automatic feeding mechanism, the automatic feeding mechanism is connected with a warehouse group storage mechanism, and the warehouse group storage mechanism is matched with an automatic packaging mechanism; each corresponding by-product is stored into the temporary storage mechanism through various white rice grading screens, polishing machines, color sorters, length machines and other by-product sorting mechanisms, the automatic feeding mechanism conveys the by-products in the temporary storage mechanism into the warehouse group storage mechanism, and the by-products are classified, the warehouse group storage mechanism collects enough by-products, and then the automatic packaging mechanism uniformly packages the by-products, so that the purposes of automatic classification, automatic collection, large-capacity warehouse group storage and centralized and unified packaging treatment are achieved.

Description

Technical Field

[0001] This invention relates to an automatic collection device and method for classifying and collecting by-products from rice processing plants, specifically in the field of rice by-product collection. Background Technology

[0002] Paddy rice is processed into polished rice through hulling and milling. At this stage, the rice is called standard rice or raw rice in the industry. It has a dull appearance and contains broken rice, white grains, yellow grains, and other discolored particles, making it unsuitable for direct market sale. These broken rice, white grains, yellow grains, and other discolored particles are considered byproducts of rice processing. Therefore, a complete rice production line is equipped with multiple rice grading screens, polishing machines, color sorters, and length sorters. These devices improve the brightness of the rice, select broken rice and discolored grains, and process the standard rice into polished rice to meet market standards. The selected broken rice and discolored grains have some economic value. The traditional collection method involves placing a small silo under each piece of equipment for on-site collection and packaging. This method has several drawbacks: firstly, on-site collection and packaging under each piece of equipment results in a dispersed operating area and a long processing line; secondly, the small silos for on-site collection and packaging have limited capacity, requiring daily manual packaging and emptying. These drawbacks hinder the reduction of labor costs and the maintenance of cleanliness in production areas. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic collection device and method for classifying by-products of rice processing plants, which achieves the goals of automated classification, automated collection, large-capacity warehouse storage, and centralized and unified packaging.

[0004] To achieve the above objectives, the present invention provides an automatic collection device for classifying by-products of a rice processing plant, including a temporary storage mechanism, an automatic feeding mechanism connected to a warehouse storage mechanism, and an automatic packaging mechanism provided with the warehouse storage mechanism.

[0005] Compared with the prior art, the beneficial effects of the present invention are that by sorting by-products such as rice grading screens, polishing machines, color sorters, and length sorters, the corresponding by-products are stored in temporary storage mechanisms. The automatic feeding mechanism then transports the by-products from the temporary storage mechanisms into the warehouse cluster storage mechanism, where they are sorted and categorized. Once the warehouse cluster storage mechanism has collected enough by-products, they are then packaged and processed by the automatic packaging mechanism. This achieves the goals of automated classification, automated collection, large-capacity warehouse cluster storage, and centralized unified packaging and processing.

[0006] As a further improvement of the present invention, the temporary storage mechanism includes several small storage bins, each of which corresponds to a different by-product sorting mechanism. The small storage bins are connected to the by-product sorting mechanisms via conveying pipes. A positive pressure airlock is installed at the bottom of each small storage bin, which is connected to an automatic feeding mechanism. A lower limit level sensor, an upper limit level sensor, and a limit level sensor are also installed inside each small storage bin, with the limit level sensor located above the upper limit level sensor.

[0007] In this way, the upper limit level sensor sends a full signal to the bin, and the PLC controls the automatic feeding mechanism to send the by-product into the bin storage mechanism for storage. The lower limit level sensor sends an empty signal to the bin, and the PLC controls the automatic feeding mechanism to stop working.

[0008] As a further improvement of the present invention, the automatic feeding mechanism includes a Roots blower, which is connected to a main pipeline. The main pipeline is connected to a positive pressure airlock valve. Multiple dual-way valves are connected in series at the end of the main pipeline. The output end of the dual-way valves is connected to a branch pipeline, which is connected to a warehouse storage mechanism.

[0009] By opening the positive pressure airlock, the by-products in the small storage silos fall into the main pipeline. The connection of the dual valves ensures that each branch is connected to the main pipeline. The air force generated by the Roots blower blows the corresponding by-products into the silo storage mechanism.

[0010] As a further improvement of the present invention, the warehouse cluster storage mechanism includes several large storage silos, with one large storage silo corresponding to one small storage silo. Each large storage silo corresponds to a branch pipeline, and a lower limit level sensor and an upper limit level sensor are installed in the large storage silo.

[0011] In this way, the by-products in the small storage silo are sent to a large storage silo. When the upper limit level sensor in the large storage silo sends a full signal, the automatic packaging mechanism is activated to package the materials. Moreover, the large storage silo has a large capacity and takes a long time to fill, thus reducing the frequency of packaging.

[0012] As a further improvement of the present invention, the automatic packaging mechanism includes several large packaging machines, which are associated with a large storage silo.

[0013] When each large storage silo sends a full signal, the PLC controls the large packaging machine to pack the by-products in the large storage silo for easy transportation. The number of large packaging machines can be set according to the actual number of large storage silos in production. If there are three or fewer large storage silos, only one large packaging machine can be set up. If there are more than three large storage silos, one large packaging machine can be set up for every two or three large storage silos to avoid low packaging efficiency due to too many large storage silos.

[0014] To achieve the above objectives, the present invention also provides an automatic collection method for classifying by-products in a rice processing plant, characterized by the following steps: Step 1, collecting by-products output from the corresponding by-product sorting mechanism in a small storage silo; Step 2, blowing the material when full; Step 3, stopping the blowing and standing by; Step 4, packaging the by-products.

[0015] As a further improvement to the present invention, the specific content of step 2 is as follows.

[0016] When the upper limit level sensor of one of the small storage silos signals that the silo is full, the PLC-controlled dual-way valve will activate first, connecting the main pipeline to the branch pipeline of the corresponding large storage silo. Then, the PLC will control the Roots blower to start automatically. Five seconds after the Roots blower starts, the positive pressure airlock of the small storage silo will activate, and the by-products in the small storage silo will quickly fall and be blown away by the Roots blower into the large storage silo.

[0017] As a further improvement of the present invention, in step 2, if the upper limit level sensors of other small storage silos also transmit a full signal, the following two processing modes are available.

[0018] In mode 1, the previous positive pressure airlock continues to work until the lower limit material level sensor sends an empty signal, at which point it stops working. The Roots blower remains in operation. After a delay of 10 to 20 seconds, the corresponding dual-way valve is closed. Then, the dual-way valve corresponding to another small storage silo that has already sent a full signal is opened, connecting the main pipeline to the required large storage silo. After that, the corresponding positive pressure airlock is started again, so that the material is blown into the large storage silo.

[0019] In mode two, the previous positive pressure airlock continues to work until the limit level indicator of another small storage silo sends a signal. Then, the previous positive pressure airlock stops, the Roots blower remains working, and after a delay of 10 to 20 seconds, the corresponding dual-way valve closes. After that, the dual-way valve corresponding to the other small storage silo that has already sent a full signal opens, connecting the main pipeline to the required large storage silo. Then, the corresponding positive pressure airlock is started, so that the material is blown into the large storage silo.

[0020] As a further improvement to the present invention, the specific content of step 3 is as follows.

[0021] When the lower limit level sensor in the small storage silo sends an empty signal, and the upper limit level sensors in the other small storage silos do not send a full signal, the positive pressure airlock closes, and the Roots blower automatically stops working after completing its pre-set operation. At the same time, the corresponding dual-way valve also cuts off the connection between the main pipeline and the corresponding large storage silo.

[0022] As a further improvement to the present invention, the specific content of step 4 is as follows.

[0023] When the upper limit level sensor in the large storage silo sends a full signal, the large packaging machine is started to pack the by-products.

[0024] Compared with the prior art, the beneficial effect of the present invention is that, under the small storage bins of by-products corresponding to each white rice grading screen, polishing machine, color sorter, and lengthening machine, there is no need to install a manual packaging device. Instead, a positive pressure airlock is installed under each small storage bin and connected to the small storage bin. A main pipeline is connected to each positive pressure airlock, the head end of which is connected to a Roots blower. The end of the main pipeline is connected to multiple branch pipelines through multiple dual-way valves and connected to each large storage bin. Each type of by-product is blown into its respective large storage bin by pneumatic conveying, and then sorted and packaged after a sufficient amount of by-products have been collected. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention.

[0026] The system includes: 1. Roots blower, 2. Positive pressure airlock, 3. Main pipeline, 4. Small storage silo, 5. By-product sorting mechanism, 6. Dual-way valve, 7. Branch pipeline, 8. Large packaging machine, and 9. Large storage silo. Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figure 1 The device shown is an automatic collection device for sorting by-products of a rice processing plant, including a temporary storage mechanism, an automatic feeding mechanism connected to a warehouse storage mechanism, and an automatic packaging mechanism.

[0029] The temporary storage mechanism includes several small storage bins 4, each of which corresponds to a different by-product sorting mechanism 5. The small storage bins 4 and the by-product sorting mechanisms 5 are connected by a conveying pipe. A positive pressure airlock 2 is installed at the bottom of each small storage bin 4, and the positive pressure airlock 2 is connected to an automatic feeding mechanism. The small storage bin 4 is also equipped with a lower limit level sensor, an upper limit level sensor, and a limit level sensor, with the limit level sensor located above the upper limit level sensor.

[0030] The automatic feeding mechanism includes a Roots blower 1, which is connected to the main pipeline 3. The main pipeline 3 is connected to the positive pressure airlock 2. Multiple dual-way valves 6 are connected in series at the end of the main pipeline 3. The output end of the dual-way valves 6 is connected to the branch pipeline 7, which is connected to the warehouse storage mechanism.

[0031] The warehouse cluster storage mechanism includes several large storage silos 9, with each large storage silo 9 corresponding to a small storage silo 4. Each large storage silo 9 corresponds to a branch pipe 7, and each large storage silo 9 is equipped with a lower limit level sensor and an upper limit level sensor.

[0032] The automatic packaging mechanism includes several large packaging machines 8, which are associated with a large storage silo 9.

[0033] like Figure 1 The method for automatic collection and sorting of by-products from a rice processing plant, as shown, includes the following steps:

[0034] Step 1: The small storage bin 4 collects the by-products output by the corresponding by-product sorting mechanism 5;

[0035] Step 2, material is fully loaded and blown;

[0036] When the upper limit level sensor of one of the small storage silos 4 transmits a signal that the silo is full, the PLC controls the dual-way valve 6 to work first, connecting the main pipeline 3 to the branch pipeline 7 of the corresponding large storage silo 9. Then, the PLC controls the Roots blower 1 to start automatically. Five seconds after the Roots blower 1 starts, the positive pressure airlock 2 of the small storage silo 4 starts, and the by-products in the small storage silo 4 will quickly fall and be blown away by the Roots blower 1 into the large storage silo 9.

[0037] In step 2, if the upper limit level sensor of other small storage silos 4 also sends a full signal, the following two processing modes apply:

[0038] In mode 1, the previous positive pressure airlock 2 continues to work until the lower limit material level sensor sends an empty signal, at which point it stops working. The Roots blower remains in operation. After a delay of 10 to 20 seconds, the corresponding dual-way valve 6 is closed. Then, the dual-way valve 6 corresponding to another small storage silo 4 that has already sent a full signal is opened, connecting the main pipeline 3 to the required large storage silo 9. After that, the corresponding positive pressure airlock 2 is started again, so that the material is blown into the large storage silo 9.

[0039] In mode two, the previous positive pressure airlock 2 continues to work until the limit level sensor of another small storage silo 4 sends a signal, at which point the previous positive pressure airlock 2 stops, the Roots blower 1 remains in operation, and after a delay of 10 to 20 seconds, the corresponding dual-way valve 6 closes. Then, the dual-way valve 6 corresponding to another small storage silo 4 that has already sent a full signal opens, connecting the main pipeline 3 to the required large storage silo 9, and then the corresponding positive pressure airlock 2 is started to blow the material into the large storage silo 9.

[0040] Step 3, stop blowing and standby;

[0041] When the lower limit level sensor in the small storage silo 4 sends an empty signal, and the upper limit level sensor in the other small storage silos 4 does not send a full signal, the positive pressure airlock 2 closes, and the Roots blower 1 automatically stops working after completing its pre-set operation. At the same time, the corresponding dual-way valve 6 also cuts off the connection between the main pipeline 3 and the corresponding large storage silo 9.

[0042] Step 4: Packaging of by-products.

[0043] When the upper limit sensor in the large storage silo 9 sends a full signal, the large packaging machine 8 is started to package the by-products.

[0044] In this invention, the Roots blower 1 functions to generate airflow; the positive pressure airlock 2 functions to discharge material from the small hopper; and the dual-way valve 6 functions to connect the branch pipe 7.

[0045] The by-product sorting mechanism 5 includes various rice grading sieves, polishing machines, color sorters, length sorters, etc., which are corresponding to the actual rice processing technology and can produce by-products such as broken rice, white grains, yellow grains, and other discolored rice particles. Each small storage silo 4 also corresponds to a sorting mechanism, so each sorting mechanism produces a corresponding rice by-product. Each type of by-product is stored under its corresponding small storage silo 4. A positive pressure airlock 2 is installed under the small storage silo 4 and connected to it. It is connected to each positive pressure airlock 2 through a main pipeline 3. The first end of the main pipeline 3 is connected to a Roots blower 1, and the end of the main pipeline 3 is connected to... Multiple dual-way valves 6, each with one input and two outputs, are used. The input of dual-way valve 1 is connected to the main pipeline, one output of dual-way valve 1 is connected to the corresponding large storage silo, and the other output is connected to the input of dual-way valve 2, and so on, until both outputs of the last dual-way valve are connected to the corresponding large storage silo. This allows multiple branch pipelines 7 to be connected to the large storage silo 9. The large storage silo 9 corresponds one-to-one with the small storage silo 4. Each type of by-product is blown into its corresponding large storage silo 9 by pneumatic conveying, sorted, and then packaged and processed after sufficient by-products have been collected.

[0046] The following are specific examples:

[0047] In actual production, if the upper limit level sensor of the broken rice storage silo 4 sends a full signal, the PLC-controlled dual-way valve 6 will activate first, connecting the main pipeline 3 to the branch pipeline 7 leading to the large broken rice storage silo 9. After the pipeline is connected, the Roots blower 1 will automatically start. Five seconds after the Roots blower 1 starts, the corresponding positive pressure airlock 2 of the broken rice storage silo 4 will activate, causing the broken rice to fall rapidly and be blown away by the Roots blower 1 into the large silo. When the lower limit level sensor of the broken rice storage silo 4 sends an empty signal, the PLC will control the corresponding positive pressure airlock 2 to stop working. The Roots blower 1 will continue to run for one minute, after which the PLC will control it to stop working, waiting for the next full signal.

[0048] Because the output of the by-product sorting mechanism 5 varies greatly within a unit of time, and the conveying time of each small storage bin 4 from full to empty is short, generally about 10 minutes, there will not be a situation where several or more by-products completely fill the small storage bin 4 at the same time.

[0049] If the upper limit level sensor in the small yellow grain storage silo 4 sends a full signal during the broken rice blowing process, the broken rice positive pressure airlock 2 continues to work until the lower limit level sensor in the small broken rice storage silo 4 sends an empty signal. Then, the broken rice positive pressure airlock 2 stops working and, after a delay of 10 to 20 seconds, ensures that all the broken rice in the pipeline is blown into the large broken rice storage silo 9. Then, disconnect the connection between the large broken rice storage silo 9 and its corresponding dual-way valve 6. After that, open the dual-way valve 6 corresponding to the small yellow grain storage silo 4 that has already sent a full signal, connect the main pipeline 3 to the required large storage silo 9, and then start the yellow grain positive pressure airlock 2 again to allow the yellow grains to be blown into the large yellow grain storage silo 9.

[0050] If the upper limit level sensor in the small yellow grain storage silo 4 sends a full signal during the broken rice blowing process, the broken rice positive pressure airlock 2 continues to work. When the limit level sensor in the small yellow grain storage silo 4 sends a signal, it indicates that the small yellow grain storage silo 4 is completely full. At this time, the broken rice positive pressure airlock 2 is immediately stopped, and the Roots blower 1 remains in operation. After a delay of 10 to 20 seconds (the delay time can be determined according to the actual pipeline length in production), the broken rice in the pipeline is completely sent into the large broken rice storage silo 9. Then, the connection between the large broken rice storage silo 9 and its corresponding dual-way valve 6 is cut off. After that, the dual-way valve 6 corresponding to the small yellow grain storage silo 4 is opened, connecting the main pipeline 3 and the large yellow grain storage silo 9. Then, the yellow grain positive pressure airlock 2 is started again, so that the yellow grains are blown into the large yellow grain storage silo 9.

[0051] When the lower limit level sensor in any small storage silo 4 sends an empty signal, the positive pressure airlock 2 corresponding to that small storage silo 4 will close, and the Roots blower 1 will continue to work for one minute. If none of the small storage silos 4 send a full signal after one minute, the Roots blower 1 will stop and the connection between the dual-way valve 6 and the large storage silo 9 will be cut off.

[0052] When the upper limit sensor in the large storage silo 9 sends a full signal, the corresponding large packaging machine 8 starts to automatically package the by-products in the large storage silo 9.

[0053] This invention achieves the goals of automated sorting, automated collection, large-capacity warehouse cluster storage, and centralized and unified packaging, thereby reducing labor costs and maintaining the cleanliness of the production area.

[0054] This invention is not limited to the above embodiments. Based on the technical solutions disclosed herein, those skilled in the art can make some substitutions and modifications to some of the technical features without creative effort, and all such substitutions and modifications are within the protection scope of this invention.

Claims

1. An automatic collection method for classified by-products of a rice processing plant, comprising an automatic collection device for classified by-products of a rice processing plant, including a temporary storage mechanism, an automatic feeding mechanism connected to a warehouse storage mechanism, and an automatic packaging mechanism provided with the warehouse storage mechanism. The temporary storage mechanism includes several small storage bins, each corresponding to a different by-product sorting mechanism. The small storage bins are connected to the by-product sorting mechanisms via conveying pipes. A positive pressure airlock is installed at the bottom of each small storage bin, which is connected to an automatic feeding mechanism. The small storage bins are also equipped with a lower limit level sensor, an upper limit level sensor, and a limit level sensor, with the limit level sensor located above the upper limit level sensor. The warehouse cluster storage structure includes several large storage silos, with one large storage silo corresponding to one small storage silo. Each large storage silo corresponds to a branch pipeline, and the large storage silos are equipped with lower limit level sensors and upper limit level sensors. Its features are: Includes the following steps, Step 1: The small storage silo collects the by-products output by the corresponding by-product sorting mechanism; Step 2, material is fully loaded and blown; When the upper limit level sensor of one of the small storage silos sends a signal that the silo is full, the PLC controls the dual-way valve to work first, connecting the main pipeline to the branch pipeline of the corresponding large storage silo. Then, the PLC controls the Roots blower to start automatically. Five seconds after the Roots blower starts, the positive pressure airlock of the small storage silo starts, and the by-products in the small storage silo will fall quickly and be blown away by the Roots blower into the large storage silo. If the upper limit level sensors of other small storage silos also send a full signal at this time, the following two processing modes apply. In mode 1, the previous positive pressure airlock continues to work until the lower limit material level sensor sends an empty signal, at which point it stops working. The Roots blower remains in operation. After a delay of 10 to 20 seconds, the corresponding dual-way valve is closed. Then, the dual-way valve corresponding to another small storage silo that has already sent a full signal is opened, connecting the main pipeline to the required large storage silo. After that, the corresponding positive pressure airlock is started again, so that the material is blown into the large storage silo. In mode two, the previous positive pressure airlock continues to work until the limit level sensor of another small storage silo sends a signal, at which point the previous positive pressure airlock stops, the Roots blower remains working, and after a delay of 10 to 20 seconds, the corresponding dual-way valve closes. Then, the dual-way valve corresponding to the other small storage silo that has already sent a full signal opens, connecting the main pipeline to the required large storage silo, and the corresponding positive pressure airlock is then started to blow the material into the large storage silo. Step 3, stop blowing and standby; When the lower limit level sensor in the small storage silo sends an empty signal, and the upper limit level sensor in the other small storage silos does not send a full signal, the positive pressure airlock closes, and the Roots blower automatically stops working after running for the preset time. The corresponding dual-way valve also cuts off the connection between the main pipeline and the corresponding large storage silo at the same time. Step 4: Packaging of by-products.

2. The automatic collection method for classifying by-products of a rice processing plant according to claim 1, characterized in that: The specific details of step 4 are as follows: When the upper limit level sensor in the large storage silo sends a full signal, the large packaging machine is started to pack the by-products.

3. The automatic collection method for sorting by-products from a rice processing plant according to claim 2, characterized in that: The automatic feeding mechanism includes a Roots blower, which is connected to the main pipeline. The main pipeline is connected to a positive pressure airlock. Multiple dual-way valves are connected in series at the end of the main pipeline. The output of the dual-way valves is connected to a branch pipeline, which is connected to the warehouse storage mechanism.

4. The automatic collection method for sorting by-products of a rice processing plant according to claim 3, characterized in that: The automated packaging system includes several large packaging machines, which are connected to a large storage silo.

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